Mysql flexible-server restore failed

### **This is autogenerated. Please review and update as needed.**

## Describe the bug

**Command Name**
`az mysql flexible-server restore`

**Errors:**
```
(OperationCancelled) The operation has been cancelled by user.

```

## To Reproduce:
Steps to reproduce the behavior. Note that argument values have been redacted, as they may contain sensitive information.

- _Put any pre-requisite steps here..._
- `az mysql flexible-server restore --debug -g {} -n {} --source-server {} --restore-time {}`

## Expected Behavior

## Environment Summary
```
Linux-5.4.0-1048-azure-x86_64-with-debian-10.2 (Cloud Shell)
Python 3.6.10
Installer: DEB

azure-cli 2.24.2

Extensions:
ai-examples 0.2.5
ssh 0.1.5

```
## Additional Context

The command runs for 16min and then stops with the error-message above...
No action/input is taken from the user --> don't understand the error-message!
Timeout ?

The debug-logs az.log and telemetry.log are available.